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How can I revert to FF ESR 52?

Firefox self-updated to ESR 60 this morning, without warning me that I would lose most of my add-ons and configurations. I understand that FF 52 has a limited life, but this is not a good week for me to have to deal with this because I am on deadline. I need access to my add-ons that I had last night so I can finish my project.

I would add that I did indeed click on the "about this update" link, but it goes to a "not found" page.

None of the links on the Mozilla website to the old versions allow me to download ESR 52. Even the link that says "download older versions" only gives access to ESR 60.

How can I go back to what I had an hour ago?

MOZILLA: This is absolutely unacceptable. You need to warn your users about what a huge update this is before it is applied, and you need to give people a window and not just force it all of a sudden. I had heard this was coming, but I had no idea that this was it.

Firefox self-updated to ESR 60 this morning, without warning me that I would lose most of my add-ons and configurations. I understand that FF 52 has a limited life, but this is not a good week for me to have to deal with this because I am on deadline. I need access to my add-ons that I had last night so I can finish my project.
I would add that I did indeed click on the "about this update" link, but it goes to a "not found" page.
None of the links on the Mozilla website to the old versions allow me to download ESR 52. Even the link that says "download older versions" only gives access to ESR 60.
How can I go back to what I had an hour ago?
MOZILLA: This is absolutely unacceptable. You need to warn your users about what a huge update this is before it is applied, and you need to give people a window and not just force it all of a sudden. I had heard this was coming, but I had no idea that this was it.

... I am on deadline. I need access to my add-ons that I had last night so I can finish my project.

What add-ons?

Plugins: There is no method to run Silverlight or the Java Runtime in Firefox any more. However, they do run in Internet Explorer 11.

Extensions: There are substitutes and migration paths for many but not all legacy extensions. To resolve the issue, or determine that we can't resolve it, we all need to get specific.

''JM999999 [[#question-1232305|said]]''
<blockquote>
... I am on deadline. I need access to my add-ons that I had last night so I can finish my project.
</blockquote>
What add-ons?
'''''Plugins:''''' There is no method to run Silverlight or the Java Runtime in Firefox any more. However, they do run in Internet Explorer 11.
'''''Extensions:''''' There are substitutes and migration paths for many but not all legacy extensions. To resolve the issue, or determine that we can't resolve it, we all need to get specific.